I'm not really answering your question. But since your ultimate goal is to obtain your RN, you may try looking at evening classes or a part time program to reach your goal.
I know Kingwood College has an evening program for students that need to work. Also, many schools
will let you go part time once accepted into the program.
When there's a will... there's a way! Don't give up.
FYI, I was told (by an HR recruiter) that once you get a round of clinicals completed you are very marketable for a Tech or Clerk job at the major hospitals in Houston (some positions starting ~$15.00/hr with benefits, including tuition reinbursement).
So you may consider working at the hospitals part/full time and also go to school. It can be done.... it may not be easy, but it can be done.
Good luck with everything.